SB 796 regulates the construction timelines for concrete batch plants operating under specific standard permits issued by the Texas Commission on Environmental Quality (TCEQ). It allows for a single 90-day extension to the deadline for beginning construction. If construction does not commence within this extended period, the applicant must submit a new application for authorization. The bill requires TCEQ to notify the state senator and representative of the area where the plant is to be located upon receiving a deadline extension request. The act mandates the adoption of implementing rules by September 1, 2026.